Detections
Analytics

Echo: bind9: security update to 1:9.20.26-1~deb13u1

high Tenable Self-Hosted Container Security Plugin ID 462428

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - The issue is a resource exhaustion vulnerability associated with DNSSEC validation. BIND always validates
 all RRSIG records in an answer, even if they are not strictly needed. A query to an authoritative
 server/zone which returns many valid but superfluous RRSIG records causes the validator to waste
 disproportionate CPU time. This issue affects BIND 9 versions 9.20.0 through 9.20.24, 9.21.0 through
 9.21.23, and 9.20.9-S1 through 9.20.24-S1. (CVE-2026-11605)

Solution

Update the bind9 library and its related packages to version 1:9.20.26-1~deb13u1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-11605

Plugin Details

Severity: High

ID: 462428

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.74

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2026-11605

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 7/23/2026

Vulnerability Publication Date: 7/22/2026

Reference Information

CVE: CVE-2026-11605

IAVA: 2026-A-0764-S